{ "bbox":null, "type":"Feature", "geometry":{ "bbox":null, "type":"Point", "coordinates":[ -79.85824, 40.39005 ] }, "properties":{ "provider":"LRP", "code":"Braddock", "slug":"braddock", "elevation":709.66, "horizontal_datum":"WGS84", "vertical_datum":"NGVD29", "state":"PA", "kind":"PROJECT", "nearest_city":"Swissvale", "public_name":"Braddock L/D", "location_code":16570111, "nsid":null, "aliases":{ "NIDID":"PA00120" }, "timeseries":[ { "tsid":"Braddock-Lower.Stage-Lower.Inst.1Hour.0.OBS", "label":"Stage Tailwater", "base_parameter":"Stage", "parameter":"Stage-Lower", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":16.84, "delta24h":null, "sort_order":5, "results":null }, { "tsid":"Braddock-Lower.Flow-Upper.Inst.1Hour.0.OBS", "label":"Outflow", "base_parameter":"Flow", "parameter":"Flow-Upper", "unit":"cfs", "unit_long_name":"Cubic feet per second", "latest_time":"2026-04-14T22:00:00Z", "latest_value":33471.03, "delta24h":null, "sort_order":7, "results":null }, { "tsid":"Braddock-Lower.Stage-Upper.Inst.1Hour.0.OBS", "label":"Stage", "base_parameter":"Stage", "parameter":"Stage-Upper", "unit":"ft", "unit_long_name":"Feet", "latest_time":"2026-04-14T22:00:00Z", "latest_value":14.88, "delta24h":null, "sort_order":4, "results":null } ], "name":"Braddock L/D", "hasResopsAverages":"false", "nidId":"PA00120", "nidid":"", "levels":[ { "slug":"stage.streambed", "label":"Streambed", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Braddock.Stage.Inst.0.Streambed", "latest_value":0, "units":"ft", "units_long_name":"Feet" }, { "slug":"stage.top of dam", "label":"Top of Dam", "parameter":"Stage", "base_parameter":"Stage", "tsid":"Braddock.Stage.Inst.0.Top of Dam", "latest_value":12, "units":"ft", "units_long_name":"Feet" } ], "id":550002, "associatedStructuresCount":0, "conditionAssessDate":null, "conditionAssessDetail":null, "conditionAssessId":6, "damHeight":null, "damLength":960, "distance":1, "drainageArea":7342, "eapId":1, "dsacAssignedDate":"2024-04-16T12:00:00.000Z", "eapMeetsGuidelinesId":1, "emergencyContactsUpdated":"2024-10-25T12:00:00.000Z", "eapLastRevDate":"2023-10-31T12:00:00.000Z", "enforcementAuthorityId":0, "federalId":"PA00120", "oldFederalId":"PA00120", "hazardId":3, "hydraulicHeight":33, "inspectionAuthorityId":0, "inspectionDate":"2023-05-05T12:00:00.000Z", "inspectionFrequency":5, "jurisdictionAuthorityId":0, "latitude":40.3905323060001, "lengthOfLocks":720, "secondaryLengthOfLocks":null, "longitude":-79.8580009149999, "maxDischarge":110000, "maxStorage":13700, "nidHeight":33, "nidStorage":13700, "normalStorage":13700, "numberOfLocks":2, "operationalStatusDate":"2010-03-30T12:00:00.000Z", "operationalStatusId":1, "originalDesignerName":null, "otherStructureId":null, "permittingAuthorityId":0, "politicalPartyId":null, "privateDamId":null, "projectDescription":"The US Army Corps of Engineers (USACE) constructed Braddock Locks and Dam in 1906 across the Monongahela River at Braddock, Pennsylvania. At that time, The dam consisted of a concrete spillway section, which means that the river flows freely over it. The facility\u2019s two locks allow river traffic to travel upstream and downstream of the dam. In 1953, the lock chambers were rehabilitated and enlarged. In 2004, a gated dam was constructed to replace the original dam. The dam is composed of concrete with two overflow spillway sections and four steel gates which allow the river to flow. The locks provide a lift of nearly 14 feet from the pool downstream of the dam (lower pool) to the pool above the dam (upper pool), which extends upstream approximately 30 miles to the John P. Murtha (formerly Charleroi) Lock and Dam in Charleroi, Pennsylvania. The locks consist of rectangular chambers formed on each side by concrete walls and steel gates on the upstream and downstream ends. The main lock chamber is 110 feet wide by 720 feet long and the auxiliary lock chamber is 56 feet wide by 360 feet long. The pool created by the dam also provides water supply and recreational opportunities for the greater Pittsburgh region. The economic benefit of shipping materials and goods through the lock, water supply, and recreation is more than 430 million dollars annually. The dam does not provide the nearby communities any protection from flooding.", "riskCharSummary":"The most recent risk assessment was performed in 2023, which characterized the risk as very low. The assessment identified one primary scenario that could cause the dam to fail. During periods of river flooding, a runaway barge could become trapped on the dam which could prevent one or more dam gates from closing. This scenario, although very unlikely could result in a loss of the upper pool to the extent that river traffic would be halted. If the upper pool were lost, the primary consequences would be the loss of shipping, water supply, and recreation, which would damage the regional economy by about 430 million dollars per year. The economic damage would be temporary, until the upper pool could be restored to allow resumption of shipping, water supply, and recreation. Downstream flooding would not be expected if the dam were to fail, and the upper pool was lost.", "riskManagementMeasures":"To ensure all steps are being taken to reduce the risk to the economy, we will continue to work with the Coast Guard, the Waterways Association, and the shipping industry to keep them aware of conditions at the dam and changes to lock operations. We regularly update our emergency action plan. We conduct routine monitoring and surveillance of the locks and dam. We closely follow rainfall forecasts to determine when high river events may occur to provide information for any necessary public or industry notifications. We closely monitor river levels and provide advisories if river levels may become unsafe for shipping. Information on river levels and forecasts are available to the public via the internet at: \n\nhttp://water.weather.gov/ahps2/forecasts.php?wfo=pbz", "riverName":"MONONGAHELA RIVER", "separateStructuresCount":0, "sourceAgency":"US Army Corps of Engineers", "spillwayTypeId":3, "spillwayWidth":748, "stateFedId":"PA00120", "stateRegulatoryAgency":null, "stateRegulatedId":0, "structuralHeight":33, "submitDate":"2023-02-16T17:25:10.808Z", "surfaceArea":1190, "volume":0, "widthOfLocks":110, "secondaryWidthOfLocks":null, "yearCompleted":1905, "congDist":"Congressional District 12, Pennsylvania", "city":"BRADDOCK", "county":"Allegheny", "aiannh":null, "websiteUrl":"https://www.usace.army.mil/Missions/Civil-Works/Dam-Safety-Program/Article/2870967/dam-safety-program/", "coreTypeIds":"2", "damTypeIds":"9", "fedConstructionIds":"1", "fedDesignIds":"1", "fedFundingIds":"1", "fedInspectionIds":"1", "fedOperationIds":"1", "fedOtherIds":"1", "fedOwnerIds":"1", "fedRegulatoryIds":"1", "formerNames":"Monongahela Locks and Dam 02", "foundationTypeIds":"1", "nonFederalDamOnFederalId":0, "designerNames":"CELRP", "otherNames":"Monongahela River Pool 02", "ownerNames":"USACE - Pittsburgh District", "ownerTypeIds":"3", "primaryDamTypeId":9, "primaryOwnerTypeId":3, "primaryPurposeId":3, "purposeIds":"3", "dsacId":5, "femaRegion":"3", "lastEapExcerDate":null, "dataUpdated":"2025-06-02T12:00:00.000Z", "usaceDistrict":"Pittsburgh District", "noConsequencesId":1, "secretaryAgricultureBuiltId":null, "nrcsWatershedAuthorizationId":null, "isAssociatedStructureId":"No", "fedRegulatedId":"Yes", "inundationNidAddedId":2, "damStatusId":2, "huc06":"050200", "doi_region":null, "doi_region_name":"North Atlantic-Appalachian", "doi_region_number":1 }, "id":16570111, "links":[ { "type":"application/json", "rel":"root", "title":"The landing page of this server as JSON", "href":"https://api.wwdh.internetofwater.app?f=json" }, { "type":"text/html", "rel":"root", "title":"The landing page of this server as HTML", "href":"https://api.wwdh.internetofwater.app?f=html" }, { "rel":"self", "type":"application/geo+json", "title":"This document as JSON", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16570111?f=json" }, { "rel":"alternate", "type":"application/ld+json", "title":"This document as RDF (JSON-LD)", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16570111?f=jsonld" }, { "rel":"alternate", "type":"text/html", "title":"This document as HTML", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr/items/16570111?f=html" }, { "rel":"collection", "type":"application/json", "title":"USACE Access2Water API", "href":"https://api.wwdh.internetofwater.app/collections/usace-edr" } ] }